CHAPTER 5: PROGRAMMING MODES
2 KHZ INVERTER WEDLING POWER SUPPLY
5-4
990-057
PROGRAM State
1
In the
PROGRAM
State, the Power Supply allows the user to change and save any weld schedule.
In those units which include the Weld Sentry Option, the
PROGRAM
State also allows the user
to change the Measurement Unit, the Limits related to each Weld Sentry program, as well as the
other parameters associated with the Weld Sentry.
2
A single weld schedule uses one Weld Function. A Weld Function is defined as a series of user
programmable time periods, some of which have programmable weld current, voltage, or power
levels. Some periods such as
SQUEEZE, COOL, QUENCH, HOLD
, and
OFF
do not have any weld
current values associated with them. For a complete description of all Weld Functions, their time
periods, and limit values, refer to
Chapter 6, Advanced Welding Functions.
3
SQUEEZE Time is automatically included as a weld schedule program variable when
MENU
OPTIONS 2, WELD HEAD TYPE:
is set to
AUTO, AIR
, or
DUAL AIR
and an Air Actuated Weld Head
is connected to the Power Supply. Squeeze Time allows sufficient time for a non-force fired
Weld Head to apply the required weld force to the work pieces. Squeeze Time is not normally
used with AMADA WELD TECH force fired Weld Heads. The weld period will start as soon
as the Squeeze Time expires. Squeeze Time can be set to any number between 0 and 2,000 ms.
NOTE:
There are two methods of programming the Power Supply; (a) use the Weld Graph
PROGRAM
State; or (b) use the Alphanumeric
PROGRAM
State.
Weld Graph PROGRAM State
Use the vertical cursor keys
to
select the weld schedule that you want to
modify. Press
PROG
to enter the Weld
Graph
PROGRAM
State.
Press
ENTER
to select the period that you
want to modify. Note: the upper right-
hand corner shows the selected period.
Use the horizontal cursor keys
to
increase or decrease the period time base
which is also displayed in the upper right
hand corner following the selected period. You can also change the period time base by using
the keypad to directly enter the exact time. Periods such as
SQUEEZE, COOL, QUENCH, HOLD,
and
OFF
do not have any weld current, voltage, or energy values. This example shows an Air
Actuated Weld Head schedule with the
SQUEEZE
period set to 0000 ms.
